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LTC1643AL-1CGN PDF预览

LTC1643AL-1CGN

更新时间: 2024-09-14 22:13:51
品牌 Logo 应用领域
凌特 - Linear 电源电路电源管理电路光电二极管控制器PC
页数 文件大小 规格书
16页 244K
描述
PCI-Bus Hot Swap Controller

LTC1643AL-1CGN 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:SSOP包装说明:SSOP, SSOP16,.25
针数:16Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.09其他特性:IT ALSO REQUIRES A -12V SUPPLY
可调阈值:YES模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-PDSO-G16JESD-609代码:e0
长度:4.8895 mm湿度敏感等级:1
标称负供电电压 (Vsup):-12 V信道数量:4
功能数量:1端子数量:16
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装等效代码:SSOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH峰值回流温度(摄氏度):235
电源:+-12 V认证状态:Not Qualified
座面最大高度:1.727 mm子类别:Power Management Circuits
最大供电电流 (Isup):8 mA最大供电电压 (Vsup):12.6 V
最小供电电压 (Vsup):11.4 V标称供电电压 (Vsup):12 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUAL处于峰值回流温度下的最长时间:20
宽度:3.899 mmBase Number Matches:1

LTC1643AL-1CGN 数据手册

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LTC1643AL  
LTC1643AL-1/LTC1643AH  
PCI-Bus Hot Swap  
Controller  
U
FEATURES  
DESCRIPTIO  
TheLTC®1643AisaHotSwapTM controllerthatallowsaboard  
to be safely inserted and removed from a live PCI-Bus slot.  
Two external N-channel transistors control the 3.3V and 5V  
supplies while on-chip switches control the –12V and 12V  
supplies. Allsupplyvoltagescanberampedupataprogram-  
mable rate. An electronic circuit breaker protects all four  
suppliesagainstovercurrentfaults.Thefoldbackcurrentlimit  
feature limits current spikes and power dissipation when  
shortsoccurandallowsboardswithlargecapacitancestobe  
poweredupwithouttrippingthecircuitbreaker. ThePWRGD  
output indicates when all of the supply voltages are within  
tolerance and the FAULT output indicates an overcurrent  
condition. The ON(LTC1643AH)/ON (LTC1643AL/  
LTC1643AL-1) pin is used to cycle the board power or reset  
the circuit breaker. The LTC1643AL-1 has the ±12V power  
good comparators disabled.  
Allows Safe Board Insertion and Removal from a  
Live PCI Slot  
Works on either a Motherboard (LTC1643AH) or  
CompactPCITM Card (LTC1643AL/LTC1643AL-1)  
Controls –12V, 3.3V, 5V, 12V Supplies  
Programmable Foldback Current Limit with  
Circuit Breaker  
User-Programmable Supply Voltage Power-Up Rate  
High Side Drive for External N-Channel MOSFETs  
–12V and 12V On-Chip Switches  
Fault and Power-Good Outputs  
Available in a Narrow 16-Lead SSOP Package  
U
APPLICATIO S  
PCI-Based Servers  
CompactPCICompliant Boards  
TheLTC1643Aisavailableina16-pinnarrowSSOPpackage.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Hot Swap is a trademark of Linear Technology Corporation.  
CompactPCI is a trademark of PCI Industrial Computer Manufacturing Group.  
U
TYPICAL APPLICATION  
Hot Swappable PCI Supply  
R1  
0.007  
Q1  
IRF7413  
5V  
5A  
R6  
10Ω  
R2  
0.005Ω  
Q2  
IRF7413  
3.3V  
7.6A  
GND  
SYSTEM  
POWER  
SUPPLY  
R5  
10Ω  
R7  
100Ω  
C1  
0.047µF  
9
10  
11  
3
13  
12  
14  
3V  
IN  
3V  
GATE 3V  
5V  
5V  
5V  
OUT  
SENSE  
OUT  
IN  
SENSE  
8
GND  
1
2
12V  
IN  
V
EEIN  
16  
5
6
7
12V  
12V  
OUT  
ON  
500mA  
LTC1643AH  
R3  
15  
4
–12V  
100mA  
V
EEOUT  
10k  
PCI  
FAULT  
POWER  
SYSTEM  
CONTROLLER  
TIMER  
R4  
10k  
C2  
0.1µF  
PWRGD  
LOGIC  
RESET  
RESET  
1643A TA01  
1643afa  
1

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